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Dec 30, 2012 at 10:09 comment added Chandan Singh Dalawat This proof goes back to Hensel, Crelle, 1905.
Apr 23, 2012 at 16:26 vote accept Frank Thorne
Apr 23, 2012 at 1:25 history edited Guillermo Mantilla CC BY-SA 3.0
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Apr 23, 2012 at 1:00 history answered Guillermo Mantilla CC BY-SA 3.0